schema-pattern-selector

schema-pattern-selector is a skill for Claude Code, Codex from AnthonyAlcaraz/agentic-graph-rag-skills. It costs 213 tokens per session (2,245 once invoked), scanned A, original, MIT.

A selector that chooses among four ways to design an agent's knowledge schema: event-centric, contextual-boundary, multi-perspective, and capability-model. A schema is the structure used to represent facts and their relationships.

In plain words
What is it for?
Use it to evaluate a free-text situation and select or validate the schema pattern that best represents it.
Why use it?
It helps match the knowledge structure to needs such as time-based reasoning, scope limits, conflicting viewpoints, or awareness of an agent's authority.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to evaluate a free-text situation and select or validate the schema pattern that best represents it.

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Install with agentmods
npx agentmods add skills/anthonyalcaraz/agentic-graph-rag-skills/schema-pattern-selector
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add AnthonyAlcaraz/agentic-graph-rag-skills --skill schema-pattern-selector
Clone the repo
git clone --depth 1 https://github.com/AnthonyAlcaraz/agentic-graph-rag-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for schema-pattern-selector

README.md
[![agentmods](https://agentmods.dev/badge/skills/anthonyalcaraz/agentic-graph-rag-skills/schema-pattern-selector/github.svg)](https://agentmods.dev/skills/anthonyalcaraz/agentic-graph-rag-skills/schema-pattern-selector)
Your own site
<a href="https://agentmods.dev/skills/anthonyalcaraz/agentic-graph-rag-skills/schema-pattern-selector"><img src="https://agentmods.dev/badge/skills/anthonyalcaraz/agentic-graph-rag-skills/schema-pattern-selector/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for schema-pattern-selector

Your own site · 80×15
<a href="https://agentmods.dev/skills/anthonyalcaraz/agentic-graph-rag-skills/schema-pattern-selector"><img src="https://agentmods.dev/badge/skills/anthonyalcaraz/agentic-graph-rag-skills/schema-pattern-selector.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 213 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,245 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00213 $0.02245
Opus 5 $0.00106 $0.01123
Sonnet 5 $0.00043 $0.00449
Haiku 4.5 $0.00021 $0.00225

Measured 9d ago against content hash 9809de2d24d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

schema-pattern-selector scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (cli.py, lib.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/knowledge-representation/schema-pattern-selector/SKILL.md · 151 lines

How it starts

The opening of the file, as written. The whole thing — 151 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Schema Pattern Selector

Overview

Effective agent reasoning begins with schema patterns designed for machine cognition across temporal, contextual, and perspectival dimensions. Ch3 names four:

  • Event-Centric — structure knowledge around occurrences, not static entities. A Meeting event with participants, start/end timestamps, location, and hasPrecedingEvent / hasFollowingEvent links. Enables "what meetings did Alice attend before the project review?" In DevOps: a DeploymentEvent node with timestamp + git commit + affected services (Example 3-14).
  • Contextual-Boundary — encapsulate information within explicit scopes. A Context(Project-X) that contains tasks, is validDuring a time range, and appliesTo a team. Prevents context mixing — the agent won't apply Task-1's facts to the wrong team or period.
  • Multi-Perspective — model contradictory viewpoints with attribution. A Revenue-Forecast where Finance says 10M (confidence 0.8) and Sales says 12M (confidence 0.7), each according-to a source. In DevOps: config drift where Terraform-state and AWS-api are two perspectives on the same setting.
  • Capability-Model — represent the agent's own capabilities, requirements, and authorization limits as queryable nodes. A support agent that can answer product questions (Public) but needs Supervisor authorization and a $500 limit to process refunds.

The selector matches a knowledge-shape description to the fitting pattern(s), flagging composition when several apply (Ch3 Tip: an event can carry multi-perspective viewpoints; a capability can be bounded by contextual constraints). The validator enforces each pattern's contract — the relationships and fields without which the pattern is broken: an event MUST have a temporal link (else it is just an entity); a context MUST declare a scope boundary; every perspective MUST attribute its value to a source with confidence in [0,1] (else contradiction-handling loses its attribution); every capability MUST declare an authorization level.

Read the full file on GitHub · 151 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 151 lines · 213 tokens per session scan A 9809de2d24d1

Subscribe to this mod's changes

schema-pattern-selector is a skill published in the GitHub repository AnthonyAlcaraz/agentic-graph-rag-skills (10 stars, last pushed 1mo ago), licensed MIT. It adds 213 tokens to every session and 2,245 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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